Drain fitting for washbasins and the like



0d. 23, 1951 BLQCH 2,572,101

DRAIN FITTING FOR WASHBASINS AND THE LIKE Filed Jan. 22, 1948 INVENTOR Lean Bloch Fig.5 1 7 .5 BY 5 #24 ATTORNEYS Patented Oct. 23, 1951 U NIT ED STATES: PATENT" OFFICE DRAIN FITTING FOR WiisHBAsIN-s AND THE LIKE 1' This invention relates: to waste fittings for wash basins and the like, and more particularly to a fitting that includes a manually operable valve.

Objects of the invention are to provide a manually operable drain valve of simple and inexpensive construction; to provide a valve that is yieldably retained in its open and closed positions; and to provide thevalve member with a guiding and retaining means that permits opening and closing movements and normally locks thevalve against removal, the retaining means being releasable by a turning movement of the valve to permit removal of the valve when desired.

With the above and other objects in view, the invention may be said to comprise the waste fitting as illustrated in the accompanying drawings hereinafter described and particularly set forth in the appended claims, together withxsuch variations and modifications thereof as will be apparent to one skilled in the art to which the invention pertains.

Reference should be had to the accompanying. drawings forming a part of this specification, in which:

Figure l is a vertical axial section of the waste fitting with the valve closed;

Fig. 2 is a section like that shown in Fig. l, with thevalve open;

Fig. 3; is a horizontal section taken on the-line indicated at 3-3 in Fig. 1;

Fig. 4 is a vertical axial section: showing-t. e movablevalve niember'turned to a position that permits its removal;

Fig. 5 is a side elevation of the movable valve member; and i Fig. 6 is a bottom, lan View. of. they movable: valve member.

In the accompanying drawings the fitting of the present invention is shown appliedto a receptacle such as a wash basin I that: is provided with a depending tubular outlet portion 2' and. with a recess 3 at the bottom thereof around the outlet portion. A drain pipe 4 is attached to the tubular outlet portion 2 of the wash, basin by means of a coupling member 5 which is in the form of a tube forming an extension ofthe drain pipe 4 and having a flange 6 at its upper end that engages in the recess'3, the flange Gibeing formed to provide a tapering valve seat- 1. The coupling member 5 has a threaded lower end 8 that screws into a threaded collar 9 that is attached to theupper end of the drain pipe 4, the collar 9*providing a support for an annular sealing washer Illthat is clamped between the collar e and the 6- Claims, (Cl; .4-295 lower end of the outlet portion 2 of the recep tacle I. The coupling member 5 is provided with diametrically opposite rectangular openings II that are-positioned below the valve seat 1 and within the outlet portion 2 of the receptacle. Theopenr' ings i I in the coupling member provide diametrir: cally opposite recesses in the outlet conduit. and have horizontallydisposed top edges I2 that pro. vide shoulders a short distance below the. valve. seat I.

A' movable valve member I3. is provided which. is'in the form of a cup formed of a resilientma: terial such as sheet metal and having a head portion I4 and a tubular skirt I5 extending downwardly from the head portion. A knob I6 is attached. centrally to the headportion I4 of the valve member I3 andprovides a handle by means of which the, valve member may be lifted to open position or pushed downwardly to closed position;

The'skirt portion I5 of the valve has a downwardly tapering upper endportion II that conforms to the tapering valve seat I to seal thereceptacleoutlet when the valve is in its lower most position. The skirt I5 has angularly spaced slots I8 extending upwardly from its lower end that serve'as drainvopenings and. provide between them two-pairs oftransversely arcuate guide arms I-9- and 20, the guide arms of each pair being (113,". metrically opposite. The diametrically opposite arms I9 have straight side edges andfit snugly Within the cylindrical interior of the coupling; member and the other pair of diametrically opposite arms 20 have side edges that converge upwardly so that the arms are narrower at their upper ends than at their lower ends and the slots I8: wider at their upper ends than at their lower ends.

The arms 20 have outwardly projecting flanges 2I at their lower ends that project into the openings II' of, the coupling member and engage with the top edges I2 of said openings to limit the upward movement of the valve member. The flangesZI have beveled ends-"22 that serve to cam the lower ends of the arms 2lll inwardly by engage ment withthe side edges of the openings I I when the valve is turned about its axis so that the flanges 2i may be brought into engagement with cylindrical portions of the coupling member. 5' between the openings I I as shown in Fig. 4, to: permit, removal. of the valve member. In order to. increase the flexibility of the arms 20 so that they do not exert too great a frictional resistance tosliding movement, and. to provide: freer'drainage, elongated oval openings 23- may be the valve is yieldingly held in its open and closed positions.

It is to be understood that variations and modiflcations of the specific devices herein shown and described for purposes of illustration, may be made without departing from the spirit of the invention. 7

What I claim is:

l. A waste fitting for wash basins and the like comprising an internally cylindrical drain conduit' having a flaring upper end portion forming an annular seat and diametrically opposite recesses that provide shoulders below said seat, and a valve member having a peripheral seating portion that conforms to said seat and a pair of diametrically opposite resilient guiding and retaining arms extending downwardly therefrom and having retaining flanges extending into said recesses and engageable with said shoulders to limit the upward movement of said valve, said arms having outwardly bowed portions above said flanges that overlie said seat in the open position of the valve and that extend into said recesses and underlie said shoulders in the closed position of the valve to yieldably retain the valve in its open and closed positions.

2. A waste fitting for wash basins and the like comprising an internally cylindrical drain conduit having a flaring upper end portion forming an annular seat and diametrically opposite recesses that provide shoulders below said seat, and a .valve member having a peripheral seating portion that conforms to said seat and a pair of diametrically opposite resilient guiding and re taining arms extending downwardly therefrom and having retaining flanges extending into said recesses and engageable with said shoulder to limit the upward movement of said valve, said arms having outwardly bowed portions above said flanges that overlie said seat in the open position of the valve and underlie said shoulder in the closed position of the valve to yieldably retain the valve in its open and closed positions, said flanges having beveled ends engageable with the sides of said recesses upon turning movements of the valve whereby said valve may be turned to position the flanges in engagement with the cylindrical wall of the drain conduit intermediate said recesses to permit removal of said valve member.

3. A waste fitting for wash basins and the like comprising a drain conduit having a flaring upper end portion forming an annular seat and a cylindrical portion below the seat that is provided with a recess that has an upper edge portion forming a downwardly facing shoulder, and a valve member formed of resilient sheet metal and provided with a head portion and a tubular skirt portion extending downwardly from the head, said skirt portion tapering downwardly at its upper end to conform to said seat and having slots extending upwardly from its lower end to provide circumferentially spaced transversely arcuate guiding arms, one of said arms having a retaining flange at its lower end that projects into said recess and engages with said shoulder to limit the upward movement of said valve member and an outwardly bowed portion above said flange that is engageable with said seat and said shoulder to yieldably hold said valve in its open and closed positions, said flange having a beveled end portion for camming engagement with a side of said recess upon a turning movement of said valve member whereby the valve member may be turned to engage said flange with the interior of said conduit laterally of said recess to permit removal of the valve.

4. A waste fitting for wash basins and the like comprising a drain conduit having a flaring upper end portion forming an annular seat and a cylindrical portion below the seat that is provided with diametrically opposite recesses that have upper edge portions forming shoulders, and a valve member formed of resilient sheet metal and provided with a head portion and a tubular skirt portion extending downwardly from the head, said skirt portion tapering downwardly at its. upper end to conform to said seat and having slots extending upwardly from its lower end to provide diametrically opposite transversely arcuate guiding arms, said arms having retaining flanges at their lower ends that project into said recesses and engage with said shoulders to limit the upward movement of said valve member and outwardly bowed portions above said flanges that are engageable with said seat and said shoulders to yieldably hold said valve in its open and closed positions, said flanges having beveled end portions for engagement with sides of said recesses when the valve member is turned so that said flanges may be moved into engagement with the cylindrical interior of the conduit to permit removal of the valve member.

5. A waste fitting for wash basins and the like comprising a drain conduit coupling member having a flanged upper end providing an annular seat and having diametrically opposite rectangular openings having upper edges below said seats, and a valve member formed of resilient sheet metal and provided with a head portion and a tubular skirt portion, said valve member being shaped to conform to said seat and said skirt having slots extending upwardly from its lower ends to provide two pairs of diametrically opposite guide arms that engage the interior of said coupling member, the arms of one pair having flanges at their lower ends that project into said openings and that engage with the upper edges of said openings to limit the upward movement of the valve member, the other pair of arms engaging the wall of the coupling member intermediate said openings, said flanges having beveled end portions for camming engagement with side edges of said openings to permit the valve member to be turned to engage said flanges with the wall of said coupling member intermediate said openings for removal of the valve member.

6. A waste fitting for wash basins and the like comprising a drain conduit coupling member having a flanged upper end providing an annular seat and having diametrically opposite rectangular openings having upper edges below said seats, and a valve member formed of resilient sheet metal and provided with a head portion and a tubular skirt portion, said valve member being shaped to conform to said seat and said skirt: having slots extending upwardly from its lowerends to provide two pairs of diametrically opposite guide arms that engage the interior of said coupling member, the arms of one pair having flanges at their lower ends that project into said openings and that engage with the upper edges of said openings to limit the upward movement of the valve member, the other pair of arms engaging the wall of the coupling member intermediate said openings, said flanged arms having outwardly bowed portions above their flanges that engage with said seat and with the upper edges of said openings to yieldably retain the valve member in its open and closed position, said flanges having beveled end portions for camming engagement with side edges of said openings to permit the valve member to be turned to engage said flanges with the wall of said coupling member intermediate said openings for removal of the valve member.

LEON BLOCH.

5 REFERENCES CITED The following references are of record in the file of this patent:

UNITED STATES PATENTS :0 Number Name Date 1,014,389 Half Jan. 9, 1912 1,704,023 Stead Mar. 5, 1929 1,937,609 Tompkins Dec. 5, 1933 2,337,331 Kirschner Dec. 21, 1943 

